The BA390S low current cluster lamps provide reliable cost-effective visual status indication in all hazardous areas. Lamps have a typical life of ten years and, depending upon colour, contain two or three high efficiency light emitting diodes mounted behind a coloured diffuser to produce a uniform output.
Optimised for high brightness at low current BA390S lamps may be powered from almost any intrinsically safe output. Their high efficiency enables them to provide a useful output with an input current of only a few milliamps.
For example, a BA390S lamp may be powered from one output of an intrinsically safe multiple digital output fieldbus module. These have several separate 4mA outputs, thus a number of BA390S cluster lamps may be powered and controlled by one module.